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Empirical versus exact numerical quasilinear analysis of electromagnetic instabilities driven by temperature anisotropy

Published online by Cambridge University Press:  29 September 2011

PETER H. YOON ,
JUNG JOON SEOUGH ,
KHAN HYUK KIM  and
DONG HUN LEE
PETER H. YOON
Affiliation:
School of Space Research, Kyung Hee University, Yongin-Si, Gyeonggi-Do, 446-701, South Korea (yoonp@umd.edu) Institute for Physical Science and Technology, University of Maryland, College Park, MD 20742, USA
JUNG JOON SEOUGH
Affiliation:
School of Space Research, Kyung Hee University, Yongin-Si, Gyeonggi-Do, 446-701, South Korea (yoonp@umd.edu)
KHAN HYUK KIM
Affiliation:
School of Space Research, Kyung Hee University, Yongin-Si, Gyeonggi-Do, 446-701, South Korea (yoonp@umd.edu)
DONG HUN LEE
Affiliation:
School of Space Research, Kyung Hee University, Yongin-Si, Gyeonggi-Do, 446-701, South Korea (yoonp@umd.edu)
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Abstract

In the present paper, quasilinear development of anisotropy-driven electromagnetic instabilities is computed on the basis of recently formulated empirical wave dispersion relation and compared against exact numerical calculation based upon transcendental plasma dispersion function and exact numerical roots. Upon comparison with the exact method it is demonstrated that the empirical model provides reasonable results. The present findings may be relevant to space physical application, as the present paper provides a useful short-cut research method for self-consistent analysis of temporal development of anisotropy-driven instabilities.

Type
Papers
Information
Journal of Plasma Physics , Volume 78 , Issue 1 , February 2012 , pp. 47 - 54
Copyright
Copyright © Cambridge University Press 2011

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